Sash-fastener



(No Model.)

W. A. GAMMELL.

SASH PASTENER.

No. 573,509. Patented Dec. 22, 1896.

q/vi-tmwoe/a I C\cu n. J 52:36 gmwm Gamm UNITED STATES PATENT OFFICE.

VILLIAM A. GAMMELL, OF DRAPER, UTAH.

SASH-FASTENER.

SPECIFICATION forming part of Letters Patent No. 573,509, dated December22, 1896.

Application filed July 10,1896. Serial No. 598,740. (No model.) i

To a. 107mm it may concern/.-

Be it known that I, WILLIAM A. GAMMELL, a citizen of the United States,residing at Draper, in the county of Salt Lake and State of Utah, haveinvented certain new and use ful Improvements in Sash Stops and Locks;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to certain new and useful improvements in sashstops and locks; and it has for its object, among others, to provide asimple and cheap construction of de vice of this character adapted to bemortised into the edge of the sash, and provided with catches adapted toengage in the strip on the adjacent portion of the frame in which thesash is mounted to slide. I provide two catches, one of which isconstructed to hold the sash up and the other to hold it down, so thatit cannot be moved in either direction without actuation of the push-pinor thumbscrew, which serves to throw both catches out of operativeengagement with the notched bar.

Other objects and advantages of the invention will hereinafter appear,and the novel features thereof will be particularly pointed out in theappended claim.

The invention is clearly illustrated in the- I in gs by letter, Adesignates a suitable casting having flanges a, provided with openingsfor the reception of the screws or other means by which it is secured inposition in a mortise in the side stile of the sash. This casting ischambered, as shown at B, and a cross-bar 0 forms two separateindependent openings D upon opposite sides of the center of saidchamber, through which work the catches or dogs E, which are mountedindependently on pivots F, held in the walls of said chamber, and areacted upon by the springs G, which are arranged within the chamber andbear against the catches or dogs to one side of their pivots. Theadjacent ends of the catches or dogs are provided with semicircularscrew-threaded openings H, into which is engaged a thumbscrew 1, whichis mounted to slide loosely through the opening J in the outer wall ofthe casting or casing.

K is a rack-bar secured to the adjacent portion of the frame in whichthe sash moves, and with which .the catches or dogs are designed toengage.

In practice the parts are arranged as shown, and the window is heldagainst movement in either direction, one catch or dog serving to holdit against movement upward and the other serving in a like manner tohold it against movement downward. When it is desired to raise or lowerthe window, all that it is necessary to do is to push inward upon thepush-pin or th umb-screw,when the acting ends of both catches or pawlsare drawn inward within the chamber of the casting or casing and thesash is free to be moved up and down. ll'hen in its desired position,pressure on the thumb-screw or push-pin is removed, when the springs actto force the catches or dogs out into their engagement with therack-bar.

Modifications in detail may be resorted to without departing from thespirit of the invention or sacrificing any of its advantages.

Having thus described the invention, What is claimed as new is- Thecombination with the rack-bar, of the casting secured to the side stileof the sash and having oppositely-disposed pivoted catches adapted toengage the rack-bar to hold the window against movement in eitherdirection, the adjacent ends of said catches being provided withsemicircular screw-threaded openings, and springs acting upon saidcatches, and a push-pin engaging said screw-threaded openings in theadjacent ends of the catches and adapted to actuate said catchessimultaneously, substantially as specified.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

WILLIAM A. GAMMELL.

\Vitnesscs:

D. O. RIDEOUT, Jr., S. J. MICKELSEN.

